Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1974-11-11
1976-05-18
Ozaki, G.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75117, 75121, 75118R, 75119, 75120, 204106, 204109, 23312ME, 423 7, 423 24, 210500M, 210 21, 210 22R, 210 23R, 55 16, 55158, C22B 1508, C22B 6008
Patent
active
039575047
ABSTRACT:
A system utilizing membrane extraction is provided to recover metal values. The system may be used to separate metal ions from an aqueous solution through the membrane by an organic liquid containing a chelating agent. This invention also contemplates the recovery of metal values from an organic phase, containing the metal complexed with a chelating agent, by an aqueous phase using membrane extraction. In the former case, the metal ion is passed through the membrane from the aqueous phase to the organic phase where it forms a complex with a chelating agent present in the organic phase. In the latter case the metal is extracted from the organic phase into the aqueous phase through the membrane. In both cases a chelating exchange reaction is involved at the interface between the membrane and one of the two phases. This hydro-metallurgical process employs membranes with metal ion diffusivity in the range of about 10.sup..sup.-5 to about 10.sup..sup.-8 cm.sup.2 /sec. and has advantages over conventional metal extractions and may be applied as the mechanism is pollutant removal and recovery as well as for metallurgical separations.
REFERENCES:
patent: 3339341 (1967-09-01), Maxwell et al.
patent: 3428449 (1969-02-01), Swanson
patent: 3454490 (1969-07-01), Wallace
patent: 3810827 (1974-05-01), Kane et al.
patent: 3855090 (1974-12-01), Skarbo
patent: 3857919 (1974-12-01), Hazen et al.
patent: 3872001 (1975-03-01), Davis
patent: 3872209 (1975-03-01), Hazen et al.
zangen, Journal of Inorganic Nuclear Chemistry, Vol. 25, No. 5, Pergamon Press Ltd., Northern Ireland, 1963, pp. 581-594.
Ho Win-Sow
Lee Lester T. C.
Liu Kang-Jen
Allied Chemical Corporation
Ozaki G.
Plantamura Arthur J.
LandOfFree
Membrane hydro-metallurgical extraction process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Membrane hydro-metallurgical extraction process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane hydro-metallurgical extraction process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2233181